CN103884982B - Low pressure microcomputer protecting controller operation panel relay intelligent check system - Google Patents
Low pressure microcomputer protecting controller operation panel relay intelligent check system Download PDFInfo
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Abstract
The present invention relates to a kind of low pressure microcomputer protecting controller operation panel relay intelligent check system, including host computer, microcomputer monitoring device.Host computer runs and has verification software；Microcomputer monitoring device interconnects with host computer, and microcomputer monitoring device produces at least two-way DC current signal and at least one road d. c. voltage signal under the control of host computer；Microcomputer monitoring device interconnects mutually with operation panel and realizes the interconnection of intelligent calibration system and relay to be verified.This intelligent calibration system uses the method that relay accesses simulation checking circuit that relay is carried out automatic Verification.It can accurately verify all of relay on the operation panel of typical case's relay protection products, can be widely applied in production and the debugging of protective relaying device, it is possible to significantly improve accuracy and the safety of test.
Description
Technical field
The present invention relates to a kind of in the operation panel to low pressure microcomputer protecting controller various relays carry out the system of automatic Verification.
Background technology
At present; main flow protects equipment manufacturer, operating maintenance department of Utilities Electric Co. and protection plant engineering service link for the verification of all kinds of relays in the operation circuit of low pressure microcomputer protecting controller; main by external impressed current, voltage method, it is tested to relay one by one realize.There is the problems such as test randomness, poor stability, test result inaccuracy in this means of testing.And owing to the operation panel plug-in unit of different manufacturers has different interfaces, relevant relays all on operation panel carry out needing to convert during test verification wiring, therefore cannot efficiently, automatically carry out the debugging efforts of protective relaying device.
Summary of the invention
It is an object of the invention to provide a kind of can system convenient, that accurately each relay in low pressure microcomputer protecting controller is automatically verified.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of low pressure microcomputer protecting controller operation panel relay intelligent check system; various relays on the operation panel to low pressure microcomputer protecting controller carry out automatic Verification, it host computer including running verification software and the microcomputer monitoring device of described host computer interconnection；Described microcomputer monitoring device and the operation panel with relay to be verified interconnect mutually and realize described intelligent calibration system with to be verified described in the interconnection of relay；
Described microcomputer monitoring device produces DC current signal under the control of described host computer and/or d. c. voltage signal inputs in relay to be verified, gathers in the host computer described in described relay working value under described DC current signal or described d. c. voltage signal and/or return value feeding simultaneously.
Preferably, described microcomputer monitoring device include controller, can produce described DC current signal be automatically adjusted DC module, can produce described d. c. voltage signal be automatically adjusted DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, input and output circuit；
Described controller has three inputs and three outfans, and first input and first outfan of described controller are connected with outfan and the input of described host computer respectively；Second input of second outfan and second outfan of described controller are connected with an outfan and an input of described operation panel respectively；3rd outfan of described controller is connected with the described input being automatically adjusted DC module and the described input being automatically adjusted DC voltage module, the described outfan being automatically adjusted DC module is connected with an input of described input and output circuit through described D/A change-over circuit, described power amplifier module successively with the described outfan being automatically adjusted DC voltage module, and an outfan of described input and output circuit is connected with the 3rd input of described controller through described A/D change-over circuit；Another input of described input and output circuit is connected with another outfan and another input of described operation panel respectively with another outfan.
Preferably, described microcomputer monitoring device includes that being automatically adjusted described at least two-way is automatically adjusted DC voltage module described in DC module and at least one tunnel.
Preferably, described microcomputer monitoring device also includes for producing the road standby DC voltage module for the d. c. voltage signal described in standby.
Preferably, described microcomputer monitoring device also included stream and overvoltage crowbar.
Preferably, it also includes realizing the interface switching device of interconnection between described microcomputer monitoring device and described operation panel；Described interface switching device includes the first interface being connected with described microcomputer monitoring device, multiple the second interface can being connected with various described operation panels, and each the second described interface is all connected with described first interface.
Preferably, described host computer is connected by USB interface or network interface with described microcomputer monitoring device.
Owing to technique scheme is used; the present invention compared with prior art has the advantage that the present invention system can accurately verify all of relay on the operation panel of typical case's relay protection products; can be widely applied in production and the debugging of protective relaying device, it is possible to significantly improve accuracy and the safety of test.
Accompanying drawing explanation
Accompanying drawing 1 is the composition frame chart of the low pressure microcomputer protecting controller operation panel relay intelligent check system of the present invention.
Accompanying drawing 2 is the system block diagram of the low pressure microcomputer protecting controller operation panel relay intelligent check system of the present invention.
Accompanying drawing 3 be the present invention low pressure microcomputer protecting controller operation panel relay intelligent method of calibration in for the schematic diagram of simulation checking circuit of trip guard relay or combined floodgate guard relay.
Accompanying drawing 4 be the present invention low pressure microcomputer protecting controller operation panel relay intelligent method of calibration in for the schematic diagram of simulation checking circuit of tripping position relay or closing operation position relay or hand trip(ping) relay.
Accompanying drawing 5 be the present invention low pressure microcomputer protecting controller operation panel relay intelligent method of calibration in for anti-trip relay simulation checking circuit schematic diagram.
Accompanying drawing 6 is the schematic diagram of a kind of low pressure microcomputer protecting controller operation panel.
Detailed description of the invention
The invention will be further described for embodiment shown in below in conjunction with the accompanying drawings.
Embodiment one: see shown in accompanying drawing 6, the concrete automatic checkout system method illustrated as a example by checking state's electricity south relay on PSL-691 route protection operation panel.Relay on this operation panel includes trip guard relay TBJ, combined floodgate guard relay HBJ, tripping position relay TWJ, closing operation position relay HWJ, hand trip(ping) relay STJ, anti-trip relay TBJV.
As shown in Figure 1, a kind of various relays on the operation panel to low pressure microcomputer protecting controller carry out the low pressure microcomputer protecting controller operation panel relay intelligent check system of automatic Verification, and it includes host computer and microcomputer monitoring device.Microcomputer monitoring device and the operation panel with relay to be verified interconnect mutually and realize the interconnection of this intelligent calibration system and relay to be verified.
As shown in Figure 2, in host computer, operation has verification software.And microcomputer monitoring device and host computer are connected interconnection by USB interface or network interface, this microcomputer monitoring device can produce at least two-way DC current signal and at least one road d. c. voltage signal under the control of host computer, and can gather working value or the return value of relay to be verified.Concrete, microcomputer monitoring device includes controller, can produce that the two-way of DC current signal is automatically adjusted DC module, the road that can produce d. c. voltage signal is automatically adjusted DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, input and output circuit.Controller has three inputs and three outfans, and first input and first outfan of controller are connected with outfan and the input of host computer respectively；Second input of second outfan and second outfan of controller are connected with an outfan and an input of operation panel respectively；3rd outfan of controller and the input being automatically adjusted DC module and be automatically adjusted the input of DC voltage module and be connected, by being automatically adjusted the input of DC module and DC voltage module can be automatically adjusted together it is integrated in controller, the outfan being automatically adjusted DC module and the outfan being automatically adjusted DC voltage module are successively through D/A change-over circuit, power amplifier module and be connected with an input of input and output circuit, power amplifier module can be integrated in input and output circuit, one outfan of input and output circuit is connected with the 3rd input of controller through A/D change-over circuit；Another input of input and output circuit is connected with another outfan and another input of operation panel respectively with another outfan.Microcomputer monitoring device also includes for producing the road standby DC voltage module for standby d. c. voltage signal, and the connected mode of this standby DC voltage module is similar to the aforementioned connected mode being automatically adjusted DC voltage module.Microcomputer monitoring device can also arrange stream and overvoltage crowbar.
Microcomputer monitoring device is interconnected by interface switching device mutually with operation panel, thus realizes the interconnection of intelligent calibration system and relay to be verified.Interface switching device includes the first interface being connected with microcomputer monitoring device, multiple the second interface can being connected with various operation panels, and the second interface is all connected with first interface.
The operation principle of above-mentioned intelligent calibration system is summarized as: microcomputer monitoring device produces at least two-way DC current signal and at least one road d. c. voltage signal under the control of host computer and inputs in relay to be verified, gather relay working value under DC current signal or d. c. voltage signal and/or return value simultaneously and send in host computer, realizing the verification of the automatization to relay with this.Such as, by interface switching device, voltage driven type relay to be verified for certain on operation panel is accessed in this automatic checkout system, under the control of host computer, in this relay, the d. c. voltage signal of a particular value is inputted by microcomputer monitoring device, then the working value of the loop collection relay of controller it is directly connected to by relay, or it is connected to the return value of collection relay place, the loop circuit of controller via input and output circuit and A/D change-over circuit by relay, judge whether relay occurs action to complete its checking procedure under the d. c. voltage signal of this particular value with this.This automatic Verification method is similar with existing method of calibration, it is possible to relay is carried out verification qualitatively.And in order to preferably relay be realized the verification of quantification, then can use following method of calibration.
The method is summarized as follows:
(1) in host computer, the control supervisor for carrying out automatic Verification based on LabView exploitation is write.
(2) operation panel is connected with microcomputer monitoring device, by microcomputer monitoring device, the relay on operation panel is connected in host computer in the simulation checking circuit of generation；
(3) under the control of host computer in relay input direct-current electric current signal or d. c. voltage signal, by the microcomputer monitoring device detection working value of relay and/or return value；
(4) make DC current signal or d. c. voltage signal be incremented by according to setting step-length, and repeat step (3), until relay action being detected by working value or return value.
As follows for different relay concrete grammars:
1, tripping operation guard relay TBJ or combined floodgate guard relay HBJ is carried out automatic Verification
nullAs shown in Figure 3，Include being connected to two parallel branches between one end of the outfan of microcomputer monitoring device and the coil of the coil of tripping operation guard relay TBJ or combined floodgate guard relay HBJ for the simulation checking circuit of the guard relay TBJ or combined floodgate guard relay HBJ that trips，The outfan of microcomputer monitoring device exports DC current signal to the coil of tripping operation guard relay TBJ or the coil of combined floodgate guard relay HBJ，Article 1, it is provided with on branch road under the control of microcomputer monitoring device and the single-chip microcomputer of folding can output flow control one contact K1，It is serially connected with on Article 2 branch road under the control of microcomputer monitoring device and the single-chip microcomputer of folding can output flow control two point K2 and the action connection point TBJ1 or the action connection point HBJ1 of combined floodgate guard relay HBJ of tripping operation guard relay TBJ；Ground connection after field effect transistor that the other end of the coil of the tripping operation coil of guard relay TBJ or combined floodgate guard relay HBJ is controlled through microcomputer monitoring device and inspection resistance R1；By whether microcomputer monitoring device collection inspection resistance R1 has electric current.
Before carrying out automatic Verification, first flow control one contact K1 outputed by Guan Bi single-chip microcomputer, the less DC current signal in a road produced by microcomputer monitoring device sequentially passes through D/A change-over circuit, power amplifier module and input and output circuit and inputs to the coil of tripping operation guard relay TBJ or combined floodgate guard relay HBJ, and this DC current signal is outputed flow control two point K2 and the action connection point TBJ1 or the action connection point HBJ1 of combined floodgate guard relay HBJ of tripping operation guard relay TBJ through single-chip microcomputer and flowed in its coil simultaneously.During verification, disconnect single-chip microcomputer and output flow control one contact K1, by whether A/D change-over circuit back production inspection resistance R1 has electric current to flow through and reach in host computer, judge that single-chip microcomputer is outputed the branch road at flow control two point K2 place and whether had electric current with this.If there being electric current, then can determine that tripping operation guard relay TBJ or combined floodgate guard relay HBJ action and form self-holding circuit.If there is no electric current, then can determine that tripping operation guard relay TBJ or combined floodgate guard relay HBJ is not operating, now, be incremented by DC current signal according to the step-length set, and repeat above-mentioned decision process, until measure send as an envoy to tripping operation guard relay TBJ or the current value of combined floodgate guard relay HBJ action.The return value of the i.e. measured relay of action situation of this current value and relay and working value, the return value recorded and working value can be reached in host computer by microcomputer monitoring device and be analyzed, realize the automatic Verification of quantification to tripping operation guard relay TBJ or combined floodgate guard relay HBJ with this, draw the action current of relay.
If DC current signal increases to relatively greatly but tripping operation guard relay TBJ or combined floodgate guard relay HBJ still akinesia, then can determine that and verify unsuccessfully (reason is probably the hardware-in-the-loop of tripping operation guard relay TBJ or combined floodgate guard relay HBJ and there is fault).
2, tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ is carried out automatic Verification
As shown in Figure 4, simulation checking circuit for tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ includes being connected to the outfan of microcomputer monitoring device and the coil of tripping position relay TWJ or the loop of the coil of the coil of closing operation position relay HWJ or hand trip(ping) relay STJ, and the outfan of microcomputer monitoring device exports d. c. voltage signal to the coil of tripping position relay TWJ or the coil of the coil of closing operation position relay HWJ or hand trip(ping) relay STJ；The action connection point STJ1 whether action of the action connection point HWJ1 or hand trip(ping) relay STJ of the action connection point TWJ1 or closing operation position relay HWJ of tripping position relay TWJ is gathered by microcomputer monitoring device.
Tripping position relay TWJ, closing operation position relay HWJ, hand trip(ping) relay STJ belong to voltage driven type relay, therefore need to be added on d. c. voltage signal produced by microcomputer monitoring device the loop at the coil place of tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ.Then gathered the action connection point of each relay by microcomputer monitoring device, can be determined that relay whether action with this.If not operating, then it be incremented by d. c. voltage signal that microcomputer monitoring device exported and repeat above-mentioned decision process, until detecting the operation voltage of relay or judging to verify unsuccessfully by setting step-length.
3, anti-trip relay TBJV is carried out automatic Verification
As shown in Figure 5, simulation checking circuit for anti-trip relay TBJV includes the first loop being connected between the outfan of microcomputer monitoring device and coil one end of anti-trip relay TBJV, it is connected to the second servo loop between the outfan of microcomputer monitoring device and coil one end of tripping operation guard relay TBJ, it is connected to the tertiary circuit between the outfan of microcomputer monitoring device and coil one end of combined floodgate guard relay HBJ, the outfan of microcomputer monitoring device exports d. c. voltage signal to the coil of anti-trip relay TBJV, the outfan of microcomputer monitoring device is respectively to coil and the coil output DC current signal of combined floodgate guard relay HBJ of tripping operation guard relay TBJ；It is provided with on first loop under the control of microcomputer monitoring device and the single-chip microcomputer of folding can output flow control three contact K3, single-chip microcomputer is outputed and is provided with two parallel branches between flow control three contact K3 and the coil of anti-trip relay TBJV, and two parallel branches are respectively arranged with the normally opened action connection point TBJV1 of the action connection point TBJ1 and anti-trip relay TBJV of tripping operation guard relay TBJ；It is serially connected with on tertiary circuit under the control of microcomputer monitoring device and the single-chip microcomputer of folding can output the normally closed action connection point TBJV2 of flow control four contact K4, anti-trip relay TBJV；Ground connection after field effect transistor that the other end of the coil of combined floodgate guard relay HBJ is controlled through microcomputer monitoring device and inspection resistance R1；By whether microcomputer monitoring device collection inspection resistance R1 has electric current.
During verification, first making microcomputer monitoring device produce a road DC current signal, this DC current signal needs necessarily to make tripping operation guard relay TBJ action.Meanwhile, microcomputer monitoring device produce a d. c. voltage signal, and output flow control three contact K3 by single-chip microcomputer and be connected to first loop at anti-trip relay TBJV place.Then by another road DC current signal produced by microcomputer monitoring device (this DC current signal necessarily can make combined floodgate guard relay HBJ action) in the tertiary circuit that flow control four contact K4 is connected to combined floodgate guard relay HBJ place outputed by single-chip microcomputer.Whether microcomputer monitoring device back production inspection resistance R1 there is electric current, if there being electric current, then show that anti-trip relay TBJV does not has action, now, it is incremented by by the step-length set and exports the d. c. voltage signal to anti-trip relay TBJV, and repeat the step of above-mentioned inspection electric current, until detecting the current value of anti-trip relay TBJV action.
This intelligent calibration system can arbitrarily arrange verification project; use novel unique detection method; completing the verification of operation panel relay, solving traditional test means can not systematicness problem to function relay checkings various in protection device operation circuit accurately.This intelligent calibration system takes automatic Verification mode, complete to operate the verification content of plate overall process, without changing test connection, overall process is by computer control, avoid the error of test data produced because testing crew is different, verification loop by simulation, by the situation determining whether electric current in the test of operation panel current relay, replace routine relay node action to judge actuating of relay situation, make measuring accuracy higher and data are more correct, more correct true at the current relay test data of mA rank for action current.It can preferably be applied to the debugging efforts of low pressure microcomputer protecting controller operation panel, meets Utilities Electric Co.'s standardized work guiding book and throws equipment test requirement for new, is effectively improved work efficiency and test data accuracy.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (6)
1. a low pressure microcomputer protecting controller operation panel relay intelligent check system; various relays on the operation panel to low pressure microcomputer protecting controller carry out automatic Verification, it is characterised in that: it host computer including running verification software and the microcomputer monitoring device of described host computer interconnection；Described microcomputer monitoring device and there is the operation panel interconnection of relay to be verified and intelligent calibration system described in realizing with to be verified described in the interconnection of relay；
Described microcomputer monitoring device produces DC current signal under the control of described host computer and/or d. c. voltage signal inputs in relay to be verified, gathers in the host computer described in described relay working value under described DC current signal and/or described d. c. voltage signal and/or return value feeding simultaneously；
Described microcomputer monitoring device include controller, can produce described DC current signal be automatically adjusted DC module, can produce described d. c. voltage signal be automatically adjusted DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, input and output circuit；
Described controller has three inputs and three outfans, and first input and first outfan of described controller are connected with outfan and the input of described host computer respectively；Second input and second outfan of described controller are connected with an outfan and an input of described operation panel respectively；3rd outfan of described controller is connected with the described input being automatically adjusted DC module and the described input being automatically adjusted DC voltage module, the described outfan being automatically adjusted DC module is connected with an input of described input and output circuit through described D/A change-over circuit, described power amplifier module successively with the described outfan being automatically adjusted DC voltage module, and an outfan of described input and output circuit is connected with the 3rd input of described controller through described A/D change-over circuit；Another input of described input and output circuit is connected with another outfan and another input of described operation panel respectively with another outfan.
Low pressure microcomputer protecting controller operation panel relay intelligent check system the most according to claim 1, it is characterised in that: described microcomputer monitoring device includes that being automatically adjusted described at least two-way is automatically adjusted DC voltage module described in DC module and at least one tunnel.
Low pressure microcomputer protecting controller operation panel relay intelligent check system the most according to claim 1 and 2, it is characterised in that: described microcomputer monitoring device also includes for producing the road standby DC voltage module for the d. c. voltage signal described in standby.
Low pressure microcomputer protecting controller operation panel relay intelligent check system the most according to claim 1 and 2, it is characterised in that: described microcomputer monitoring device also included stream and overvoltage crowbar.
Low pressure microcomputer protecting controller operation panel relay intelligent check system the most according to claim 1, it is characterised in that: it also includes realizing the interface switching device of interconnection between described microcomputer monitoring device and described operation panel；Described interface switching device includes the first interface being connected with described microcomputer monitoring device, multiple the second interface can being connected with various described operation panels, and each the second described interface is all connected with described first interface.
Low pressure microcomputer protecting controller operation panel relay intelligent check system the most according to claim 1, it is characterised in that: described host computer is connected by USB interface or network interface with described microcomputer monitoring device.
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| CN201410141177.3A CN103884982B (en) | 2014-04-10 | 2014-04-10 | Low pressure microcomputer protecting controller operation panel relay intelligent check system |
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| CN201410141177.3A CN103884982B (en) | 2014-04-10 | 2014-04-10 | Low pressure microcomputer protecting controller operation panel relay intelligent check system |
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| CN104635112B (en) * | 2015-01-30 | 2017-05-10 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing control loop |
| CN107478921B (en) * | 2017-06-26 | 2019-11-12 | 上海聚仁电力科技有限公司 | A kind of Microcomputer Protection test macro |
| CN111220865A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Remote control type three-phase alternating current miniature protection tester |
| CN112986815B (en) * | 2021-04-30 | 2021-08-06 | 帝森克罗德集团有限公司 | Circuit and method for testing anti-tripping loop of circuit breaker |
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| US6377051B1 (en) * | 1999-12-03 | 2002-04-23 | Abb Power T&D Company Inc. | Relay test set using computer controlled voltage supply to stimulate both voltage and current transformers |
| CN201514448U (en) * | 2009-07-02 | 2010-06-23 | 上海市电力公司超高压输变电公司 | Integrated testing device of relay protection |
| CN201689160U (en) * | 2010-05-20 | 2010-12-29 | 湖北前沿科技有限公司 | Portable comprehensive parameter tester of relay |
| CN203012095U (en) * | 2012-11-15 | 2013-06-19 | 中国电力科学研究院 | Overall performance detecting system for magnetic latching relay |
| CN103245910A (en) * | 2013-05-03 | 2013-08-14 | 北京航空航天大学 | Online monitor for brake closing and separating time of high-voltage switch |
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